Deeply explain Oersted's experiment to show magnetic effect of current

whenever current is passed through a straight condector it behaves like a magnet.The magnitude of magnetic effect increases with the strengh of the current.The magnetic field set up by the condector is at right angles to the direction of the current (reason:magnetic needle sets itself at right angle to the condector carring current).The direction in which the north pole of the magnetic needle will move depends upon (a)direction of current in condector , (b)relative position of condector with respect to magnetic needle (whether the condector is above the needle or below it).